K-SK14 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.603109 n_e = 1.605479	V_d = 60.68 V_e = 60.43	n_F - n_C = 0.009937 n_F' - n_C' = 0.010019	Coloring: 0.29 - 0.35 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.5308132 C2 = -0.01061267 C3 = 0.014144456 C4 = 0.00020737292 C5 = 0.0000048161489 C6 = -0.00000024653755

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.591810
n _s	1.594676
n _r	1.598348
n _C	1.600079
n _C'	1.600562
n _0.6328	1.601013
n _D	1.603020
n _d	1.603109
n _e	1.605479
n _F	1.610017
n _F'	1.610581
n _g	1.615401
n _h	1.619859
n _i	1.627420
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8321
P_C,A'	0.3499
P_d,C	0.3048
P_e,C	0.5433
P_g,d	1.2368
P_g,F	0.5417
P_h,g	0.4485
P_i,g	1.2094
P_C',t	0.8807
P_e,C'	0.4947
P_F',e	0.5134
P_i,F'	1.6943

transmittance: 10 mm
τ_0.28	0.063
τ_0.29	0.128
τ_0.3	0.303
τ_0.31	0.511
τ_0.32	0.693
τ_0.33	0.8
τ_0.34	0.887
τ_0.35	0.933
τ_0.36	0.963
τ_0.37	0.977
τ_0.38	0.986
τ_0.39	0.99
τ_0.4	0.992
τ_0.42	0.995
τ_0.44	0.995
τ_0.46	0.995
τ_0.48	0.995
τ_0.5	0.997
τ_0.55	0.997
τ_0.6	0.997
τ_0.65	0.998
τ_0.7	0.998
τ_0.8	0.998
τ_1.06	0.998
τ_1.5	0.995
τ₂	0.977

transmittance: 25 mm
τ_0.28	0.001
τ_0.29	0.005
τ_0.3	0.05
τ_0.31	0.187
τ_0.32	0.4
τ_0.33	0.574
τ_0.34	0.742
τ_0.35	0.841
τ_0.36	0.91
τ_0.37	0.943
τ_0.38	0.967
τ_0.39	0.976
τ_0.4	0.981
τ_0.42	0.988
τ_0.44	0.988
τ_0.46	0.988
τ_0.48	0.988
τ_0.5	0.992
τ_0.55	0.993
τ_0.6	0.994
τ_0.65	0.996
τ_0.7	0.996
τ_0.8	0.996
τ_1.06	0.996
τ_1.5	0.988
τ₂	0.945

Poisson coef.: 0.26
Rigidity: 340 Pa*10⁸
Young module: 857 Pa*10⁸
Knoop hardness: 539
Abrasion: 130

Climatic resistance: 2
Resistance to acids: 4

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	73